Welcome. Please log in or register.

Share

JCE ChemEd Xchange provides a place for sharing information and opinions. Currently, articles, blogs and reading lists from ChemEd X contributors are listed below. We plan to include other items that the community wishes to share through their contributions to ChemEd X.

Doug Ragan's picture

Teaching Chemistry With a Whole New "App"titude. Intro Blog 1.0

Fri, 02/08/2013 - 22:24 -- Doug Ragan
ChemAppLite

Allow me to introduce myself, my name is Doug Ragan and I have been a high school chemistry teacher for fourteen years.  Three years ago, I was approached by my high school principal and the conversation went like this,

Principal:  "You are one lucky guy."

Me:  "Really, why?"

Hal Harris's picture

The Half-Life of Facts: Why Everything We Know has an Expiration Date

Mon, 01/28/2013 - 17:26 -- Hal Harris

Samuel Arbesman, a mathematician and network scientist, uses the idea a half-life as an analogy for the changes in human knowledge that science brings. He discusses both the changing rate at which new science is done and the speed at which old results are replaced by newer ones. The analogy is far from perfect, but it emphasizes some critically important aspects of the processes of science.

Deanna Cullen's picture

Percent Composition of an Oreo Cookie

Wed, 01/16/2013 - 14:09 -- Deanna Cullen

Whenever possible, I try to begin a topic with something my students are familar with. For the introduction of Percent Composition in my general chemistry course, I brought in bags of Oreo cookies. Seeing the bags upon entering class was a great attention getter. If you are looking for ways to add more inquiry to your chemistry course, this a an example of how you can experiment with giving up a little control. Try it and see how it goes.

Hal Harris's picture

Public Defender: Diane Ravitch Takes on a Movement

Tue, 11/20/2012 - 15:02 -- Hal Harris

The respected education reformer Diane Ravitch, previously one of the major architects and proponents of No Child Left Behind, has not only taken a new tack, but reversed course. With her 2011 book, she became a leading voice critical of the Obama-Duncan version, Race to the Top. This essay by David Denby describes her evolution.

Pages